Window



March 6, 1934. 5. J. LEGHART WINDOW Filed March 1. 195?. 2 Sheets-Sheet INVENTOR Sfe hen J Leghcxrl BY 6 Tiql.

@QIIW ATTORNEYS March 6, 1934. 5,.1. LEGHART WINDOW Filed March 1. 1952 2 Sheets-Sheet INVENTOR STephen J. Legharr BY P 60.

ATTORNEYS Patented Mar. 6, 1934 UNITED STATES PATENT OFFICE 4 Claims.

This invention relates to windows and has for an object to provide an improved construction which is preferably formed from metal, though it may be formed from other material without departing from the spirit of the invention, the structure including a stationary frame adapted to be connected to the wall, and a swinging frame coacting therewith, adapted to be swung inwardly and outwardly whenever desired.

Another object of the invention is to mount the sash-carrying frame to easily swing inwardly so that the cleaning of the window may be done from the inside, and the person cleaning the window need not be exposed to the hazard of risking life by standing on the sill when cleaning the outside of the window.

Another object is to provide a window structure wherein the sashes are carried by a swinging frame which may receive the panes of glass and be glazed before it is mounted or may be readily removed and then glazed within the room so that the glazer need not be exposed to the hazard of standing on the outside sill when doing his work.

An additional object of the invention is to provide a window having a stationary frame and a swinging frame, the swinging frame carrying the weights and sashes which are swung back and forth with the swinging frame.

Another object, more specifically, is to provide in a window an arrangement of pulleys for counterbalancing the sashes in such a way that the sashes will assist in the counterbalancing action and require a minimum weight to complete the counterbalancing action.

A further object is to provide in a window a frame having hollow uprights at each side and in these uprights a single weight with a system of pulleys associated with the sashes so that one weight on each side of the frame will act in the proper counterbalancing way to support the sashes in different elevations.

An additional object is the provision of a window wherein sliding sashes are used and a lock automatically moved to a locking position when the sashes are closed.

In the accompanying drawings,

Figure 1 is a vertical sectional view through a window disclosing an embodiment of the invention.

Figure 2 is an elevation of part of the window shown in Figure 1, the same looking at the window from the side of the room.

Figure 3 is a horizontal sectional view through the window, the same being taken on line 3-3 of Figure 2.

Figure 4 is an enlarged fragmentary view of the lower part of the center portion of the window in elevation as shown in Figure 1, certain parts being broken away so as to illustrate the special locking structure.

Figure 5 is a detail fragmentary enlarged sectional view at meeting rails of sliding sashes through Figure 3 approximately on the line 4-4.

Figure 6 is a view similar to Figure 5 but showing the sliding sashes closed. 7

Referring to the accompanying drawings b numerals, 1 indicates what may be termed the outside or stationary frame, and 2 the swinging frame. The stationary frame 1 is made to fit into the wall in any desired manner, and is preferably made of metal throughout. The same is true of all the parts of frame 2 which is hingedly connected to the frame 1. In forming the frame 1, the same is formed on the top and bottom and on each side with offset portions 3 and 4, and with a flange 5 which may be of any desired height, but, preferably, comparatively low so as to secure a tight connection between the swinging frame and the stationary frame but not to add undesirable weight. The swinging frame 2 is made up of a plurality of pieces of metal formed to present a hollow frame which is constructed to be pleasing in appearance, and at the-same time mechanically secure the results desired. Access to the interior of the hollow frame 2 may be had by removing the plates 63 which are removably held in place by screws 64.

From Figure 1 it will be noted that the frame 2 is formed with a right angle metal piece 6, a flat plate 7, and a substantially V-shaped plate 8 welded or otherwise secured together. The angle plate 6 is preferably provided with an integral over-hanging flange 9 adapted to overhang the flange 5 but spaced therefrom sufliciently to permit the frame 2 to swing back and forth on its pivotal hinge members, 10 and 11. It will be noted that the plate 7 at the bottom of the window is on the inside, while at the top, it is on the outside. When the swinging frame 2 is in its closed position, as shown in Figure 1, it tightly fits against the flange 5 and is held in this position by the hinges 10 and 11, and also by a locking mechanism 12 hereinafter fully described.

As indicated in Figures 1 and 3, there is pro.- vided a parting strip 13 on each side, but not at the top and bottom of the swinging frame 2. As indicated in Figure 1, there. are provided top and bottom sashes 14 and 15 which generally are arranged in the usual manner of sashes of this kind, but the bottom sash 15 is provided with a special construction of flange 16 which preferably extends for the full width of the sash so as to present a hand-hold for readily raising the sash at any time and at any point along the bottom. It will be noted that the sash 15 is formed at the bottom with members 17 and 18 held together by welding or other desired means. The member 17 is provided with depending webs 19 and 20, web 20 fitting snugly against plate '7, while web 19 fits snugly against the flange 21 formed integral with member 6. At

the top, the sash 14 is constructed with members substantially identical with members 17' and 18, the member 1'7 having a notch for accom-' modating part of the top plate 7. -At the sides, the respective sashes are formed with members 17" and 18", the flanges 19' and 20' being rounded so as to easily coact with rounded beads 22 and with the rounded portions of the parting strips 13. This provides an interlocking of the two members and at the same time an easy sliding structure with a space 23 for the reception of the small pulleys 24 and the flexible cables which pass thereover. The sashes at the meeting rails have a special construction which has been illustrated particularly in Figures 5 and 6. The outer meeting rail 25 is provided with a flange .26 offset downwardly and with a member 27 which acts as a keeper, the same having an opening 28. The inner rail 29 is provided with a socket 30 merging into a smaller aperture 31 through which the pin'32 projects, said pin having a head on which the spring 33 rests, said spring tending to urge the sliding cam 34 upwardly. This cam has an inclined cam face 35 adapted to engage the cam face 36 on the locking plate 37 so that whenever the meeting rails 25 and 29 are together, the pin 32 will be pushed upwardly and the spring will transmit power to the sliding cam 34, so that the face 35 may act on face 36 and rotate the disk 3'7 a short distance. The locking disk 3'? is provided with a cam locking rail 38 which is adapted to be forced through the opening 28 and to lock the meeting rails together, and also, to cam the rails upwardly and downwardly against each other to cause the cams 36 to press tightly against the lower part of the meeting rail 29, thus providing a rattleproof structure. A hand member 39 is rigidly secured to and formed integral with the plate 37, so that the locking plate may be manipulated manually, whereby it may be moved to a fully locked position or to an unlocked position. The cam 34 rotates the locking plate 37 only a short distance, which will naturally produce a locking action, but, if desired, the plate could be further rotated manually. By reason of this construction, it will be seen that whenever the window sashes have been moved to their respective closed positions, the meeting rails will be automatically locked and the sashes cannot be then shifted to an open position until the locking plate 37 has been manually moved to an unlocked .position.

Referring to the swinging frame 2, it will be 'seen that the hinges 10 and 11 hold the frame so that it may be swung inwardly and outwardly after proper manipulation of the lock 12. This swinging frame carries the weights, pulleys and associated parts used in counterbalancing, or assisting in counterbalancing, the respective sashes. As the counterbalancing weights are arranged,

the sashes also assist in the counter-balancing action, the structure being such that the weights are reduced to two in number and the size of the weights are also reduced, so that the effect is to greatly lighten the weight of the entire window. As the Weights and associated parts on each side are identical, the description of one will apply to both.

As illustrated in Figures 1, 2 and 3, pulleys 24 and 24' are connected respectively to the outer sashes 14 and 15. Arranged in the upper part of the swinging frame 2 are pulleys 40 over which the cable 41 extends, said cable at the respective ends being secured at 42 and 43 to the upper part of the frame 2. These cables not only pass over pulleys 40 but also over the small pulleys 24 and 24", and over a floating pulley 44. This floating pulley has a clevis 45 connected therewith, and to this clevis a weight 46 is secured, so that the weight may be freely swung and act to move the pulley 44 downwardly under the action of gravity. Tension brought on the cable or sash cord 41 in this manner will support the respective sashes in any position in which they may be left. If the upper sash is slid downwardly, the weight 46 will be moved upwardly a certain distance, and if the lower sash is moved upwardly with the outer sash in a lowered position, the weight 46 will be moved downwardly. When the sashes are moved back to their first and ordinary positions, the weight 46 will move downwardly to substantially the position shown in dotted lines in Figure 2.

It will be seen in Figure 1 that the sash cord or cable 41 extends from the fastening member 42 downwardly and over pulley 24. From pulley 24 it extends upwardly'over one of the pulleys 40 and then downwardly over the floating pulley 44 and from the floating pulley 44, it extends up,- wardly over the other pulley 40 and then downwardly and over the pulley 24, where it extends upwardly to the fastening member 43. This arrangement is on both sides, and, consequently the sashes are properlybalanced so as to slide freely.

It will be noted that all of these members are carried by the frame 2 and when the frame 2 swings inwardly in order that the glass pane of the window may be cleaned, or for any other purpose, the weights, pulleys, and associated parts are also swung as a unit. When the frame 2 is in its closed position, all the parts function in the usual way, namely, the sashes being moved upwardly and. downwardly freely, and are counterbalanced to operate easily. The meeting rails and lock associated therewith function in the usual Way of a lock except for the features involving the automatic locking structure.

In order to hold the swinging frame 2 in a closed position, lock 12 is provided, the same being arranged preferably substantially centrally of the window. This lock includes a bolt 4'7 having a cam face 48, said bolt being guided by the side plate 49, and by the respective extensions 56 and suitable apertures in the frame 2. A spring 51 is riveted or otherwise rigidly secured to the frame 2, as shown in Figure 3, and has its free end pressing against the shoulder 52, as shown in Figure 4. The bolt 4'? has a flange 53 beneath which the extension 54 extends, said extension being part of a cam 55, which cam has an inclined face 56 and is operated by a handle 57 through the lever 58 and pin 59, which pin is connected with the cam 55. The pin 59 is rockably mounted in the lever 58 so that as the lever is swung, the pin may move in the arc-shaped slot 60, while the cam face 56slides beneath the flange 53, and

thereby retracts the bolt 47 against the action of the spring 51. The handle 57 and lever 58 are rigidly secured and pivotally mounted at 62 on the frame 2.

I claim:-

1. A window structure comprising a stationary frame formed with an inwardly extending flange on the top, bottom and sides, and an offset substantially halfway between the front and rear surfaces of the frame, said offset being formed on the top, bottom and sides, and an auxiliary sash carrying frame fitted into said stationary frame, said auxiliary frame having part of the outer surface positioned against said inwardly extending flange, and a flange on the top, bottom and sides fitting against said offset for providing a double weather-tight structure.

2. A Window structure including a stationary frame having a centrally positioned offset and an inwardly extending flange spaced outwardly from said offset, and a sash carrying sub-frame fitted within the stationary frame, said subframe having a pair of hollow stiles and a pair of top and bottom hollow sections, said subframe being positioned with the outer surface fitting against said flange and being formed on the periphery adjacent the inner part with a pair of spaced flanges, one of which is positioned against said offset and the other arranged parallel thereto and engaging the body of said sta tionary frame.

3. In a window of the character described, a sash carrying frame having a pair of stiles for guiding the sashes in the frame, each of said stiles presenting in cross section a right angled plate with one of the walls of the plate forming an overhanging bead provided with an undercut portion presenting a guide rail for part of the sash, a side plate and a front plate removably secured to the side plate and to the right angled plate, said front plate having a projection forming an overhanging bead provided with an undercut portion presenting a guide for part of the sash, and a parting strip having overhanging shoulders coacting with said beads for providing grooves with undercut portions for guiding a sash.

4. A window structure including a stationary frame comprising a rectangular body formed in cross section to present a plurality of outwardly extending flanges, two of said flanges being positioned to substantially straddle the wall to which the window is connected, and the other flange being substantially parallel thereto forming a trimming and weatherproof socket in connection with one of the first mentioned flanges, said body being also provided with a centrally positioned offset and an inwardly extending flange spaced outwardly from the offset, the end of the offset presenting an abutment, said flange and abutment being in parallel relation, a subframe arranged within the first mentioned frame and provided with means for fitting flatwise against said abutment and the last mentioned flange.

STEPHEN J. LEGHART. 

